Power-transmission mechanism for automobiles.



M. L. SENDERLING.

POWER TRANSMISSION MECHANISM FOR AUTOMOBILES.

APPLICATION FILED OUT. 28. 1912.

1,128,064. Patented Feb. 9, 1915 a g 'r Q gi M Us E V R 9 z N n Y N w wmvsss s INVENTOR 1 M/WW/VL. y/mmu/va,

MARTIN L. SENDEB'LING.

F JERSEY CITY, NEW JERSEY.

PGWEB-TRANSMISSION MECHANISIM FOR AUTOMOBILES.

Application filed Gctoher 2S, 19 12.

To all whom it may mrrwern Be it known that lvliirrix L. SENDER- LING, a citizen of the United Stntes, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and Improved PoiVer-lruhS- mission Mechanism for Automobiles, of which the following is a full, clear, and act description.

Among the principal objects which the present invention has in view are: to provide means manually operable for positively and operatively connecting the two sections of a. driving shaft which is normally operzn tively connected through a differential gcur ing; and a further object is to simplify the construction of the auxiliary connecting mechanism.

Reference is to be had to the accompanying drawings forming a part of this specification, in which like characters indicate corresponding parts in all the vievs and in which:

Figure 1 is a plan view, partly in section, of a transmission IHQBhLHIlQi'E constructed and arranged in accordance with the present invention; and l I s View showing a modified form of the invention.

As seen in the drawings, the casing 7 houses any desired form of differential mechanism. by means whereof the power transmitted by the driving shaft 8 is trans mitted to either or both of the shaft sections 9 and 10, at the outer ends whereof are sprocket wheels which are. opcratively connected by belts 12 with sprocket wheels 13 on each of the traction Wheels 14 of the automohile.

Under the present existing conditions. if either of the wheels l l slip. the differential eiiring; yields to the variable pressure and the slipping heel to race While evudhe l"i\'i.n, stress of the shaft 8 on the, wheel 14 which. has gripped. In the present nieelnmisin l provide the gear Wheels 15 and 16, the iormer being rigidly mounted on the shaft section while the hitter is rigidly mounted on the shaft section ll Meshed with ihe wheels and F are gear pinions i? said l5. he pinion l7 rigidly mounted on I Jflllit 3-lllft section l9, while the p nion 1r gidly mounted upon it sepurriije com 'slhii't se tion 2 The said (,hfi'iii flii ."t swt n are joined in :1 su t able XlnHlliLi iii is mounted on the section 11 i ii. int rn: coned clutch mem- Specification of Letters Patent.

Patented Feb. 9, 1915.

Serial No. 728,114.

ber 2i. Hliduhly mounted on the section is an externally eoned clutch member 22. The nie ilier 2; is furi'iished with the usual groove 3 into which isexten'ded the ends of pins Z-l mounted in the yoke 25. The yoke J5 is rigidly mounted on a plunger The plunger 2 is slidably mounted in bearings formed in the casing 27.

To shift the plunger 26 and the clutch member 2:! carried thereby it bell-crank le ver 28 is employed. The hell-crank lever 28 is provided with an elongated slot 29 in which a. pin 30 inserted. The pin 30 is mounted in the end of the plunger 26.

The shaft sections 9 and ll) are each mounted in bearings formed in the casing T and in the boxes 31 on the side rails 32 of the automobile chassis. The forward end ot the casing, 157 is also preferably supported from the chassis. The bell-crm'il; lever 28 is secured by means of it pin 33 in a bracket 34 ulso inoui'ited on the automobile chassis and on the crossbar 35 thereof. The bellcrunl: lever is operated from the drivers or elmuli'eurs station, being connected with 2! suitable lever located by means of the conliti'tlllg' rod 3&3.

Having a n'iecl'ninisni constructed and or ranged above deserihed the operation is as folhnvs: When the driver or chauli'eur sees that citlur of the wheels 1 is slipping on the rozulhed when the machine is moving in a substantiall straight path, he operates the lever mnneeted with the connecting rod 36 to throw the clutch section 22 ii'itoengugement with the clutch section 21. \Vhen the clutch sections 21 and 22 grip a transmission is established between the shaft sections 9 and it) compelling the same to rotate in unison and in effect cutting out the operation of the differential gearing mounted in the casing 7. It will be seen from this that the full power of the shaft 8 and engine connected therewith is imparted to both or one of the wheels 14 and the racing of the idle or slipping wheel is thereby eliminated. \Vhen the machine has moved to a section of roadbed Where both wheels are operating, normally and performing their function by gri'ip 'iing the roudbed, the dri er or chaufieur operates the bell-crank lever 28 and throws out of engagement the clutch me1nhers ill and 22. The 'euftcr the shaft section 9 and countershnft st. tion 1 and shaft sec tion 10 and countershzut ion 2-0 are free to move independently and inqsellthe differential gearing in the casing 7. It is preferred that the countershaft sections 19 and 20, clutch members thereon, and gear wheels above described should be cased to protect the same from dust and flying grit. For this purpose the casing 27 is pro ided. It will be noted that the casing 27 is integrally connected with the casing 7, webs of brackets 37 being provided to reinforce the structure. The extensions 38 of the casings are provided to inclose the gear wheels 15 and 17 and 1G and 18.

In the modified form of the invention, as seen in Fig. 2 of the drawings, the casing 27, and associated parts above referred to, is omitted in order that the necessary amount of flexibility or independent adjustment may be permitted the countersl'iaft sections 1.) and 20. These sections are connected by brackets 39 with the chassis of the machine. The brackets 39 provide bearing boxes 4-0 for the plunger 41 with the pin 42 U by which the bell-crank lever 28 is engaged.

The brackets 39 are each provided with a collar 43 which enfolds the counter-shaft sections 19 and 20 in juxtaposedrelation to the bearings 4 of the heavy links The links 45 are each provided with elongated bearings 46 that extend between the wheels 15 and 16 to the end of bearings of the casing 7.

The operation of the modified form of the mechanism shown in Fig. 2 is in all respects similar to the operation of the 'u'e'l erred form shown in Fig. l and above described.

Having thus described my invention, what l claim and desire to secure by Letters latout is:

l. A power transmission mechanism for automobiles, embodying a sectional driving shaft; a plurality of traction wheels, one lqieratively connected with each end of said driving sha'l't; a dill'crential gearing connecting the sections of said driving shaft; a sectional counter-shaft parallel with said driving shaft; a clutch, the separate members whereof are mounted each on one of the sections of said counter-shaft to operatively unite the same when said clutch 1nembors are engaged; a plurality of transmission gear wheels fixedly mounted on said driving shait and said counter-sliaft in paired relation, the pairs being disposed at opposite sides of said differential gearing; and manually-operative means for operating said clutch.

2. A power transmission mechanism for automobiles, embodying a sectional driving shaft; a plurality of traction wheels, one

--operatively connected with each end of said driving shaft; a differential gearing conneeting the sections of said driving shaft; a sectional counter-shaft parallel with said driving shaft; a clutch; the separate members whereof are mounted each on one of the sections of said eounter-shaft to operatively unite the same when said clutch members are engaged; a plurality of transmission gear wheels fixedly mounted on said drivingshaft and said counter-shaft in paired relation, the pairs being disposed at opposite sides of said differential gearing; manuallypperative means for operating said clutch; and a unit casing for covering said clutch and differential gearing.

3. A power transmission mechanism for automobiles, embodying a sectional driving shaft; a plurality of traction wheels, one opcratively connected with each end of said driving shaft; a differential gearing connecting the sections of said driving shaft; a sectional counter-shaft parallel with said driving shaft; a clutch, the separate members \vh'ereof are mounted each on one of the sections of said counter-shaft to operativcly unite' the same when said clutch members are engaged; a plurality of transmis sion gear wheels fixedly mounted on said driving shaft and said counter-shaft in paired relation, the pairs being disposed at opposite sides of said difl'erential gearing; manually-opcrative means for operating said clutch; and a unit casing covering said dill'erential gearing, clutch and transmission gear wheels, said casing having pivotal bearings on said driving shaft, and forming bearings for said counter-shaft.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MARTIN L. bENDER-LING- \Vitnesses:

E. F. Munnoon, Puimr D. RoLLnAUs 

